red dwarf flare stars

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• Red dwarf — According to the Hertzsprung Russell diagram, a red dwarf star is a small and relatively cool star, of the main sequence, either late K or M spectral type. They constitute the vast majority of stars and have a mass of less than one half that of… …   Wikipedia

• red dwarf — noun a small, old, relatively cool star; approximately 100 times the mass of Jupiter • Syn: ↑red dwarf star • Hypernyms: ↑star • Hyponyms: ↑flare star * * * noun : a star at the lower end of the main sequence in the spectrum luminosity diagram h …   Useful english dictionary

• Habitability of red dwarf systems — Determining the habitability of red dwarf systems could help reveal how likely extraterrestrial life is to exist, as red dwarfs make up a majority of all the stars in the galaxy. Critical factors assumed to be impediments to habitablity include… …   Wikipedia

• Stars and planetary systems in fiction — The planetary systems of stars other than the Sun and the Solar System are a staple element in much science fiction. Contents 1 Overview 1.1 The brightest stars …   Wikipedia

• Flare star — A flare star is a variable star which can undergo unpredictable dramatic increases in brightness for a few minutes. It is believed that the flares on flare stars are analogous to solar flares in that they are due to magnetic reconnection in the… …   Wikipedia

• flare star — Astron. a dwarf star that exhibits sudden increases of magnitude similar to solar flares. Also called UV Ceti star. [1950 55] * * * Star that varies in brightness repeatedly but sporadically, sometimes by more than one magnitude, within a few… …   Universalium

• Brown dwarf — Brown dwarfs are sub stellar objects which are too low in mass to sustain hydrogen 1 fusion reactions in their cores, which is characteristic of stars on the main sequence. Brown dwarfs have fully convective surfaces and interiors, with no… …   Wikipedia

• Star — For other uses, see Star (disambiguation) …   Wikipedia

• 40 Eridani — Observation data Epoch J2000.0      Equinox J2000.0 Constellation Eridanus 40 Eridani A Right ascension 04h 15m 16.320s[ …   Wikipedia

• star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …   Universalium

• Proxima Centauri — Coordinates: 14h 29m …   Wikipedia